Silicon Carbide Desulfurizer Grain 10-40mm
Silicon carbide grains sized 10-40mm used as desulfurizer in molten iron treatment. Classified under HTS 2849.20.20.00 for ground or refined silicon carbide forms. Chemically defined per Note 1 to Chapters 28/29.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If larger crude pieces
Pieces over crude size limit before refinement classify as crude.
If with calcium carbide mixtures
Desulfurizer preparations blending multiple carbides become chemical mixtures in 3824.
If predominantly pig iron alloy
If considered primarily iron alloy with minor SiC, shifts to Chapter 72.
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Import Tips & Compliance
• Foundry test reports aid classification; heavy bulk bags require proper dunnage; watch magnesium content thresholds
Related Products under HTS 2849.20.20.00
Ferro-Silicon Carbide Grain 24/48 Mesh
Ferro-silicon carbide in granular form with 24/48 mesh size, chemically defined as silicon carbide with iron additives, used as an abrasive and deoxidizer in steel production. It falls under HTS 2849.20.20.00 because it is silicon carbide processed into grains or ground form, meeting the chapter's criteria for carbides whether or not chemically defined. This subheading specifically covers silicon carbides that are ground, pulverized, or refined.
Silicon Carbide Powder 600 Grit FFP
High-purity silicon carbide powder at 600 grit, black in color, used for precision lapping and polishing in optics and ceramics manufacturing. Classified under HTS 2849.20.20.00 as chemically defined silicon carbide that has been pulverized or refined into fine powder form. This distinguishes it from crude silicon carbide.
Green Silicon Carbide Micronized Powder 1200 Mesh
Green silicon carbide micronized to 1200 mesh, produced via Acheson process with higher purity, ideal for bonded abrasives and refractories. It qualifies for HTS 2849.20.20.00 due to its refined, pulverized state as a chemically defined carbide of silicon. The green color indicates low iron impurities.
Black Silicon Carbide Grain 16/30 Mesh for Steel Deoxidation
Black silicon carbide grains sized 16/30 mesh, used in steelmaking for deoxidation and as a slag conditioner. Falls under HTS 2849.20.20.00 as ground silicon carbide grains, chemically defined per Chapter 28/29 notes. Standard abrasive/metallurgical grade.
Silicon Carbide Fused Powder 325 Mesh Refractory Grade
Fused silicon carbide powder at 325 mesh, designed for high-temperature refractory brick production. Classified in HTS 2849.20.20.00 for its pulverized, refined form as a silicon carbide compound. Chemically defined with consistent SiC composition.
SiC Abrasive Grain 80 Grit Ground
Silicon carbide (SiC) abrasive grains at 80 grit, ground for use in resinoid grinding wheels and coated abrasives. Under HTS 2849.20.20.00 as refined, ground silicon carbide, chemically defined carbide per chapter provisions. Standard black SiC grade.